Consumption of water having excessive arsenic (As) contamination can cause adverse health effects on human beings. In this study, novel ultra-large zirconium oxide (ZrO₂) nanosheets were successfully synthesized using graphene oxide (GO) templates and their adsorption-ability was studied for arsenite (As(III)). Owing to higher values of surface area, numbers of available hydroxyl groups and strong chemisorption binding affinity towards As(III), the synthesized novel ultra-large ZrO₂ nanosheets showed high adsorption-ability for As(III) over a wide pH range. Experimental results demonstrated that the maximum adsorption-ability of the ZrO₂ nanosheets for As(III) reached to 74.9 mg/g at pH 6. BET, zeta potential, effect of initial pH, FTIR and XPS have been used to analyze the As(III) adsorption process on the ZrO₂ nanosheets. The experiments for effects of co-existing ions indicated that ZrO₂ nanosheets possessed good anti-interference ability towards co-existing ions. Furthermore, the ZrO₂ nanosheets demonstrated very fast and excellent treatment of simulated real As(III) polluted water, consequently the effluent concentration met the standard regulated by World Health Organization. This study suggested that the as-prepared ZrO₂ nanosheets could be potentially applied in practical drinking water treatment.

食用砷（As）污染过多的水可能对人类造成不利的健康影响。在这项研究中，使用氧化石墨烯（GO）模板成功合成了新型超大型氧化锆（ZrO ₂）纳米片，并研究了其对亚砷酸盐（As（III））的吸附能力。由于较高的表面积值，可用的羟基数和对As（III）的强化学吸附结合亲和力，因此合成的新型超大ZrO ₂纳米片材在较宽的pH范围内显示出对As（III）的高吸附能力。实验结果表明，ZrO ₂的最大吸附能力pH值为6的As（III）纳米片达到74.9 mg /g。BET，ζ电位，初始pH值，FTIR和XPS的影响已用于分析As（III）在ZrO ₂纳米片上的吸附过程。共存离子效应的实验表明，ZrO ₂纳米片对共存离子具有良好的抗干扰能力。此外，ZrO ₂纳米片对模拟的真实As（III）污水显示出非常快速和出色的处理效果，因此出水浓度符合世界卫生组织规定的标准。这项研究表明，所制备的ZrO ₂纳米片可以潜在地应用于实际的饮用水处理中。